4. A …………..faucet can waste a lot of water a month.
A. running B. dripping C. cutting D. dropping
5. Energy can be collected by solar …………….on cloudy days.
A boards B panels C bars D sheets
6. All the houses in our villages will be ……………..by the solar energy.
A heated B spoiled C frozen D widened
7. In my family, lighting accounts ………..20% of the electricity bill.
A. of B. to C.in D for
8. In order to save electricity, an ordinary 100-watt light bulb can be replaced by a(an)…..... bulb.
A. energy-saving B energy-save C saving-energy D save-energy
9. Paul isn’t going to the concert ………………the tickets are too expensive.
A though B however C because D and
10. Nga is very tired. …………., she has to finish her homework before she goes to bed.
A Though B Because C Therefore D However
11. “My father couldn’t fix the TV set”. “....................send for a repairman?”
A. Let’s B. What about C. Why don’t you D. I suggest
12. An enormous amount of money has been waste in this project.
A. very important B. very large C. very small D. very limited
13. Ultimately, you ‘ll have to make the decision yourself.
A. Consequently B. Basically C. Generally D. Finally.
14. .................can be cheap, clean, effective source of power that doesn’t cause pollution.
A. Nuclear B. Gas C. Solar energy D. Coal
15. Nga failed her English exam. .................., she had to do it again.
A. Because B. But C. Therefore D. However

5. People have already left the flooded villages when rescue workers arrived.

         A                B                                     C                                             D

6. We will be communicate just by thought over the network in the year 2030.

            A                  B                             C                                    D

7. Do you want learning shorthand in 15 minutes?

     A                      B                        C           D           

aquatic     radioactive      contaminated       poison      pollutant      dumped sewage     untreated       dead        effects

1. ________ or wastewater should be treated before it is discharged into the river or ocean.

2. More and more waste and________ are poured into the water, the soil and the air.

3. The________ material is stored in a special radiation-proof Container.

4. Oil spills can cause the death of________ animals such as fish.

5. ________sewage can spread disease and contaminate drinking water sources.

6. Cholera is transmitted through________ water

7. The health________ of air pollution include heart disease, lung cancer, and asthma.

8. Carbon dioxide is a dangerous air________.

9. Over 150,000 tonnes of waste are________ annually along the coastline.

10. Up to 100.000 fish were found________ along the river last week.

Choose the best answer

7. You may enroll our course by e-mail _____ can be faster than other registration forms
A. who          B. where          C. which          D. when
8. The pollution _____ they were talking is getting worse
A. that          B. about which          C. which          D. whom
9. The young man _____ was released after the court was found innocent of all the charges against him
A. who          B. who he          C. which          D. whose
10. Bournemouth, _____we are going to visit, is a real paradise for the retired
A. that         B. what          C. which          D. in which
11. The engineer _____ our company relies is on holiday.
A. who          B. whom          C. whose          D. on whom
12. The pupils _____ we took to the amusement park behaved themselves very well.
A. whose          B. with whom          C. whom          D. which

11. Thinking over a decision can be a disadvantage: by the time our boss made up his mind about the price the contract ____________ to Brown & Sons.

        A. has gone                B. had gone                        C. did go                               D. would have gone

12. We are not going to stop. The campaign should go on until every bike ___________ marked with the new reflective paint. Just think how many lives it may save.

        A. will have been                     B. was                                   C. has been                        D. will be

13. After only two or three days it turned out to be rather unfortunate that Andrea, my only acquaintance in Puebla, __________ there long enough to be a good guide.

        A. hadn’t lived                           B. didn’t live                       C. hasn’t lived                    D. wasn’t living

14. Both witnesses, who were giving widely conflicting accounts of the incident, ________ on one important detail: the driver of the van was a young woman in a baseball cap.

        A. didn’t agree                          B. had agreed                    C. have been agreeing   D. did agree

15. Next Friday, when Cindy __________ her last exam at the college, I’ll be taking her out for dinner at the Continental.

        A. has passed                             B. will have passed          C. will pass                          D. passed

16. Don’t ask me to show you the slides before my wife __________ them. Call it censorship if you like.

        A. seeing                                     B. will have seen              C. has seen                         D. saw

17. Without any warning he ____________ the boy on the chest.

        A. striked                                     B. stroke                              C. stroked                           D. struck

18. “It’s a pity you haven’t seen that play.” “But I have, I __________ it last week.”

        A. have seen                              B. saw                                   C. had seen                        D. was seen

19. “Is it true you plan to hold a press conference?” – “Yes, as soon as the first results __________ known. It’s important to be quick.”

        A. will be                                     B. will have been              C. are                                    D. were

20. “It says here the base at North Pass has been receiving supplies only by air.” – “Oh really? Since when?” – “Since the bay _________ over.”

        A. freezed                                   B. froze                C. has frozen                      D. has frost